Interactive engineering calculators, standards, and knowledge for HVAC professionals.
14 interactive calculators, organized by engineering discipline
Calculate the total ventilation rate required for a mixed-use building according to ASHRAE 62.1-2019 standards. Ensure proper indoor air quality and compliance.
Calculate the required boiler capacity for your hydronic heating system, including diversity and losses, to ensure efficient and reliable operation.
Calculate the required chilled water flow rate for your HVAC system based on cooling load and temperature difference. Ensure efficient and effective cooling.
Calculate the condensate flow rate and recommended pipe diameter for your rooftop unit based on cooling capacity and local climate. Ensure proper drainage and prevent water damage.
Calculate the cooling load for commercial buildings using the CLTD/CLF method. Get accurate estimates for HVAC system sizing and design.
Calculate the cooling load for a commercial building using ASHRAE fundamentals. Ensure proper sizing of HVAC equipment with accurate load calculations.
Calculate and classify duct leakage based on SMACNA standards. Ensure your HVAC system is efficient and compliant with industry standards.
Calculate the optimal duct size for your HVAC system based on airflow, velocity, and static pressure drop. Ensure efficient and effective air distribution.
Calculate the required expansion tank volume for your closed-loop hydronic system to ensure proper pressure management and system longevity.
Calculate the total external static pressure (TESP) for your HVAC system. Ensure proper fan selection and system performance with this easy-to-use calculator.
Select the right chilled water pump based on flow rate, head, and system curve. Ensure efficient and reliable operation with our HVAC engineering tool.
Estimate the energy and cost savings for fan or pump applications using a Variable Frequency Drive (VFD). Calculate annual savings and evaluate the payback period.
Estimate heat loss through a building envelope using U-values and temperature differential. Improve thermal performance and energy efficiency.
Select the appropriate VFD motor starter based on motor nameplate data and application duty cycle. Ensure optimal performance and reliability.
